[Bug tree-optimization/117557] New: [15 Regression] gcc_r miscompiles in SPECCPU 2017 with SVE2 since g:3d498cfe022f6e035ff24e0d78ff744da83ebf42

[tnfchris at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117557

            Bug ID: 117557
           Summary: [15 Regression] gcc_r miscompiles in SPECCPU 2017 with
                    SVE2 since g:3d498cfe022f6e035ff24e0d78ff744da83ebf42
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: tnfchris at gcc dot gnu.org
  Target Milestone: ---
            Target: aarch64*

The gcc_r benchmark miscompiles since
g:3d498cfe022f6e035ff24e0d78ff744da83ebf42

with -mcpu=neoverse-v2 -Ofast.

This is an initial report and I'll post more details as I debug.